Total power use

[tony5093]

I have many Sonoff POW and Medion units.
Each sends power use to the Domoticz server.
Now I would like to have a total of all the power consumption and have this displayed on the Utility page.
How can this be done?
Does anyone have an example?

Thanks in advance

[SweetPants]

How can this be done?

Just my 2 cents
1) Create a dummy device according your needs
2) Write a dz_Ventz script that gathers all data and update the dummy device

[waaren]

I have many Sonoff POW and Medion units.
Each sends power use to the Domoticz server.
Now I would like to have a total of all the power consumption and have this displayed on the Utility page.
How can this be done?
Does anyone have an example?

Thanks in advance

What are the type / subtypes of the domoticz devices receiving the power usages ?
Did you name these devices according to a naming convention ? (something like SonoffPowerUsage_1 .... SonoffPowerUsage_many)
Do you want to have the total displayed on a text sensor or alert sensor (or both) ?

[dospider]

Toy5093,
Do you have allready a solution? I'm looking for a solution to show the total power use again. This is gone with the new version of domoticz.
When you go to devices the total is there, but you can't see it within the utility page.

[michaldobrotka]

This is my lua script - counting together power use from 3 Phases and updating dummy device IDX 705 (Total).

Code: Select all

----------------------------------------------------------------------------------------------------------
local DeviceName1 = "Faza1" 		
local DeviceName2 = "Faza2" 		
local DeviceName3 = "Faza3" 		
local ConsumptionIDX = 705  			-- IDX of the energy device that shows calculated Consumption
local ConsumptionDeviceName = "Total" 		-- Name of the energy device that shows calculated Consumption
----------------------------------------------------------------------------------------------------------
-- Script parameters
----------------------------------------------------------------------------------------------------------
Energy1 = 0 -- in Watt hours
Power1 = 0 	-- in Watts
Energy2 = 0	-- in Watt hours
Power2 = 0	-- in Watts
Energy3 = 0 -- in Watt hours
Power3 = 0 	-- in Watts
EnergyConsumption = 0 	-- in Watt hours
PowerConsumption = 0 	-- in Watts
Debug = "NO" 		-- Turn debugging on ("YES") or off ("NO")
 
----------------------------------------------------------------------------------------------------------
-- Lua Functions
----------------------------------------------------------------------------------------------------------
function update(device, id, power, energy, index)
	commandArray[index] = {['UpdateDevice'] = id .. "|0|" .. power .. ";" .. energy}
end 
 
----------------------------------------------------------------------------------------------------------
-- CommandArray
----------------------------------------------------------------------------------------------------------
commandArray = {}
	Power1, Energy1 = otherdevices_svalues[DeviceName1]:match("([^;]+);([^;]+)")
	if Debug=="YES" then
		print("  ----- ".. DeviceName1 .. "Power = " .. Power1 .. " W");
		print("  ----- ".. DeviceName1 .. "Energy = " .. Energy1 .. " Wh");
	end
 
	Power2, Energy2 = otherdevices_svalues[DeviceName2]:match("([^;]+);([^;]+)")
	if Debug=="YES" then
		print("  ----- ".. DeviceName2 .. "Power = " .. Power2 .. " W");
		print("  ----- ".. DeviceName2 .. "Energy = " .. Energy2 .. " Wh");
	end
	
	Power3, Energy3 = otherdevices_svalues[DeviceName3]:match("([^;]+);([^;]+)")
	if Debug=="YES" then
		print("  ----- ".. DeviceName3 .. "Power = " .. Power3 .. " W");
		print("  ----- ".. DeviceName3 .. "Energy = " .. Energy3 .. " Wh");
	end
 
	-- Calculate consumption
	PowerConsumption = Power1 + Power2 + Power3
	if Debug=="YES" then
		print("  ----- PowerConsumption = " .. PowerConsumption .. " W");
	end
	EnergyConsumption = Energy1 + Energy2 + Energy3 
	if Debug=="YES" then
		print("  ----- EnergyConsumption = " .. EnergyConsumption .. " Wh");
	end
 
	-- Update comsumption device in Domoticz
	if devicechanged[DeviceName1] or devicechanged[DeviceName2] or devicechanged[DeviceName3] then
		update(ConsumptionDeviceName, ConsumptionIDX, PowerConsumption, EnergyConsumption, 1)
	end
 
return commandArray

It is working, but Im geting Error message (needed some touchup) :

Code: Select all

2018-11-19 14:43:00.344 Error: EventSystem: in celkovaspotreba: [string "-- /home/pi/domoticz/scripts/lua/script_devic..."]:65: attempt to index global 'devicechanged' (a nil value)